USE OF ESTIMATES—The preparation of financial statements in conformity with accounting principles generally accepted in the United States requires management to make estimates and assumptions that affect the amounts and disclosures in the financial statements. Our significant estimates include, but are not limited to: (1) allowances for doubtful accounts receivable; (2) estimated useful lives of assets, which impact depreciation; (3) estimated fair values of long-lived assets recorded in fresh-start reporting; (4) estimated fair values of long-lived assets used in impairment tests; (5) fair values of derivative instruments; and (6) accrual and disclosure of contingent losses. Although management believes these estimates are reasonable, actual results could differ materially from these estimates.

FRESH-START REPORTING—We adopted fresh-start reporting on the Emergence Date. In connection with fresh-start reporting, we recorded the following at the Emergence Date:

CASH AND CASH EQUIVALENTS—Cash includes currency on hand and demand and time deposits with banks or other financial institutions. Cash equivalents include highly liquid investments with maturities of three months or less at the date of purchase. Balances at financial institutions may exceed federally insured limits.

RESTRICTED CASH—As described in Note 8, our Plan of Reorganization specified the total amount of consideration we would provide to all pre-petition creditors in settlement of their claims. At December 31, 2011, we had not yet completed the process of disbursing funds to settle pre-petition claims, as we had not yet completed the process of resolving all of the claims. The restricted cash balance at December 31, 2011 includes $37.5 million of cash that is restricted for this purpose. The December 31, 2011 restricted cash balance also includes $2.0 million of cash that is restricted for other purposes.

ACCOUNTS RECEIVABLE—Accounts receivable are reported net of the allowance for doubtful accounts. Our assessment of the allowance for doubtful accounts is based on several factors, including the overall creditworthiness of our customers, existing economic conditions, and the amount and age of past due accounts. We enter into netting arrangements with certain counterparties to help mitigate credit risk. Receivables subject to netting are presented as gross receivables (with the related accounts payable also presented gross) until such time as the balances are settled. Receivables are considered past due if full payment is not received by the contractual due date. Past due accounts are written off against the allowance for doubtful accounts only after all collection attempts have been exhausted.

At the Emergence Date, as part of fresh-start reporting, we recorded accounts receivable at fair value. This was accomplished by reducing the allowance for doubtful accounts to $-0- and recording a corresponding reduction to accounts receivable. We report any amounts we have collected in excess of the estimated Emergence Date fair value as reductions to operating expenses in the consolidated statements of operations.

INVENTORIES—Inventories primarily consist of natural gas and natural gas liquids, crude oil, and asphalt. Inventories are valued at the lower of cost or market, with cost generally determined using the weighted-average method. The cost of inventory includes applicable transportation costs.

We enter into exchanges with third parties whereby we acquire products that differ in location, grade, or delivery date from products we have available for sale. These exchanges are valued at cost, and although a transportation, location or product differential may be recorded, generally no gain or loss is recognized.

PROPERTY, PLANT AND EQUIPMENT—Property, plant and equipment is recorded at cost (although, as described above, property, plant and equipment was adjusted to fair value at November 30, 2009 upon adoption of fresh-start reporting). We capitalize costs that extend or increase the future economic benefits of property, plant and equipment, and expense maintenance costs that do not. When assets are disposed of, their cost and related accumulated depreciation are removed from the balance sheet, and any resulting gain or loss is recorded as a gain or loss on disposal or impairment of long-lived assets in the consolidated statements of operations.

Depreciation is calculated primarily on the straight-line method over the following estimated useful lives:

LINEFILL—Pipelines and storage facilities generally require a minimum volume of product in the system to enable the system to operate. Such product, known as linefill, is generally not available to be withdrawn from the system. Linefill owned by us in facilities operated by us is recorded at historical cost, is included in property, plant and equipment in the consolidated balance sheets, and is not depreciated. We also own linefill in third party facilities, which is included in inventory or in other noncurrent assets on the consolidated balance sheets.

IMPAIRMENT OF LONG-LIVED ASSETS—We test long-lived asset groups for impairment when events or circumstances indicate that the net book value of the asset group may not be recoverable. We test an asset group for impairment by estimating the undiscounted cash flows expected to result from its use and eventual disposition. If the estimated undiscounted cash flows are lower than the net book value of the asset group, we then estimate the fair value of the asset group and record a reduction to the net book value of the assets and a corresponding impairment loss.

GOODWILL—We test goodwill for impairment on an annual basis, or more often if circumstances warrant, by estimating the fair value of the asset group to which the goodwill relates and comparing this fair value to the net book value of the asset group. If fair value is less than net book value, we estimate the implied fair value of goodwill, reduce the book value of the goodwill to the implied fair value, and record a corresponding impairment loss. Prior to the Emergence Date, SemGroup L.P.'s policy was to test goodwill for impairment on December 31 of each year. Subsequent to the Emergence Date, SemGroup Corporation's policy is to test goodwill for impairment on October 1 of each year. See Note 6 for discussion of goodwill impairment.

During September 2011, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2011-08, "Testing Goodwill for Impairment". This ASU is designed to simplify how entities test goodwill for impairment. Under the new standard, an entity may first assess qualitative factors to determine whether it is more likely than not that the fair value of an asset group is less than the carrying amount, for the purpose of determining whether it is necessary to estimate the fair value of the asset group to which the goodwill relates. We plan to adopt this new standard in 2012.

EQUITY METHOD INVESTMENTS—We account for an investment under the equity method when we have significant influence over, but not control of, the significant operating decisions of the investee. Under the equity method, we record in the consolidated statements of operations our share of the earnings or losses of the investee, with a corresponding adjustment to the investment balance on our consolidated balance sheet. When we receive a distribution from an equity method investee, we record a corresponding reduction to the investment balance.

For equity method investments for which we do not expect earnings information to be consistently available to record earnings in the quarter in which they are generated, our policy is to record equity earnings on a one-quarter lag. This does not have a material impact on our financial statements.

DEBT ISSUANCE COSTS—Costs incurred in connection with the issuance of long-term debt are reported as other noncurrent assets and are amortized to interest expense using the straight-line method over the term of the related debt. Use of the straight-line method of amortization does not differ materially from the "effective interest" method.

COMMODITY DERIVATIVE INSTRUMENTS—We generally record the fair value of commodity derivative instruments on the consolidated balance sheets and the change in fair value as an increase or decrease to product revenue.

As shown in Note 15, the fair value of commodity derivatives at December 31, 2011 and 2010 are recorded to other current assets or other current liabilities on the consolidated balance sheets. Related margin deposits are recorded to other current assets or other current liabilities on the consolidated balance sheets. Margin deposits are not generally netted against derivative assets or liabilities.

The fair value of a derivative contract is determined based on the nature of the transaction and the market in which the transaction was executed. Quoted market prices, when available, are used to value derivative transactions. In situations where quoted market prices are not readily available, we estimate the fair value using other valuation techniques that reflect the best information available under the circumstances. Fair value measurements of derivative assets include consideration of counterparty credit risk. Fair value measurements of derivative liabilities include consideration of our creditworthiness.

We have elected "normal purchase" and "normal sale" treatment for certain commitments to purchase or sell petroleum products at future dates. This election is only available when a transaction that would ordinarily meet the definition of a derivative but instead is expected to result in physical delivery of product over a reasonable period in the normal course of business and is not expected to be net settled. Agreements accounted for under this election are not recorded at fair value; instead, the transaction is recorded when the product is delivered.

PAYABLES TO PRE-PETITION CREDITORS—As described in Note 8, our Plan of Reorganization specified the total amount of consideration we would provide to all pre-petition creditors in settlement of their claims. At December 31, 2011, we had not yet completed the process of disbursing funds to settle pre-petition claims, as we had not yet completed the process of resolving all of the claims. We recorded a liability of $38.7 million at December 31, 2011 associated with these obligations, $0.9 million of which is associated with discontinued operations and is reported within other current liabilities. Of this amount, $37.5 million is held in cash accounts which are restricted for this purpose. The remaining amount is associated with certain accounts receivable and other current assets. Any proceeds received from these assets will be remitted to pre-petition creditors.

CONTINGENT LOSSES—We record a liability for a contingent loss when it is probable that a loss has been incurred and the amount of the loss can be reasonably estimated. We record attorneys' fees incurred in connection with a contingent loss at the time the fees are incurred. We do not record liabilities for attorneys' fees that are expected to be incurred in the future.

ASSET RETIREMENT OBLIGATIONS—Asset retirement obligations include legal or contractual obligations associated with the retirement of long-lived assets, such as requirements to incur costs to dispose of equipment or to remediate the environmental impacts of the normal operation of the assets. We record liabilities for asset retirement obligations when a known obligation exists under current law or contract and when a reasonable estimate of the value of the liability can be made.

DISCONTINUED OPERATIONS—SemMaterials, SemFuel, and SemEuro Supply are presented as discontinued operations in the consolidated financial statements. We classify a component of our business as a discontinued operation when we commit to a plan to sell the component and believe it is probable that a sale will be completed within one year. A component that is disposed of in a manner other than by sale is classified as discontinued when the component is actually disposed. Investments accounted for under the equity method, or the cost method, do not qualify for treatment as discontinued operations. A component that is disposed of may not qualify for treatment as a discontinued operation if we have significant continuing involvement in the operations of the component after the disposal.

Once a component meets the requirements to be classified as a discontinued operation, previous financial statements are retrospectively adjusted to reflect the component as a discontinued operation for all periods presented. Income and losses of discontinued operations (excluding corporate general and administrative expense allocations) are combined into one line on the consolidated statements of operations. The cash flows from discontinued operations are not separately identified in the consolidated statements of cash flows.

REVENUE RECOGNITION—Sales of product, as well as gathering and marketing revenues, are recognized at the time title to the product transfers to the purchaser, which typically occurs upon receipt of the product by the purchaser. Terminal and storage revenues are recognized at the time the service is performed. Revenue for the transportation of product is recognized upon delivery of the product to its destination. Certain revenue transactions are reported on a net basis, including derivative instruments considered held for trading purposes and certain buy/sell transactions (see "Purchases and Sales of Inventory with the Same Counterparty"). Taxes collected from customers and remitted to governmental authorities are recorded on a net basis (excluded from revenue).

COSTS OF PRODUCTS SOLD—Costs of products sold consists of the cost to purchase the product, the cost to transport the product to the point of sale, and the cost to store the product until it is sold.

PURCHASES AND SALES OF INVENTORY WITH THE SAME COUNTERPARTY—We routinely enter into transactions to purchase inventory from, and sell inventory to, the same counterparty. Such transactions that are entered into in contemplation of one another are recorded on a net basis.

INTEREST EXPENSE DURING REORGANIZATION—While we were in bankruptcy, we only recorded interest expense to the extent such interest was expected to be paid. Interest obligations that were expected to be compromised in the reorganization process (i.e., not paid in full) were not recorded as expenses. The total amount of interest that we would have been contractually obligated to pay, but which was compromised in the reorganization process and not recorded as an expense, was $221.0 million for the eleven months ended November 30, 2009.

CURRENCY TRANSLATION—The consolidated financial statements are presented in U.S. dollars. Our segments operate in four countries, and each segment has identified a "functional currency," which is the primary currency in the environment in which the segment operates. The functional currencies include the U.S. dollar, the Canadian dollar, the British pound sterling, and the Mexican peso.

At the end of each reporting period, the assets and liabilities of each segment are translated from its functional currency to U.S. dollars using the exchange rate at the end of the month. The monthly results of operations of each segment are generally translated from its functional currency to U.S. dollars using the average exchange rate during the month. Changes in exchange rates result in currency translation gains and losses, which are recorded within other comprehensive income (loss).

Certain segments also enter into transactions in currencies other than their functional currencies. At the end of each reporting period, each segment re-measures the related receivables, payables, and cash to its functional currency using the exchange rate at the end of the period. Changes in exchange rates between the time the transactions were entered into and the end of the reporting period result in currency transaction gains or losses, which are recorded in the consolidated statements of operations.

INCOME TAXES—Deferred income taxes are accounted for under the liability method, which takes into account the differences between the basis of the assets and liabilities for financial reporting purposes and amounts recognized for income tax purposes. We record valuation allowances on deferred tax assets when, in the opinion of management, it is more likely than not that the asset will not be recovered.

We monitor uncertain tax positions and we recognize tax benefits only when management believes the relevant tax positions would more likely than not be sustained upon examination. We record any interest and any penalties related to income taxes within income tax expense in the consolidated statements of operations.

REORGANIZATION ITEMS—As described in Note 1, we operated as a debtor-in-possession subject to the jurisdiction of the bankruptcy court during the eleven months ended November 30, 2009. Revenues, expenses, realized gains and losses, and provisions for losses resulting from the reorganization and restructuring of the business during that period are reported as reorganization items in the consolidated statement of operations. The effects of the adjustments to the reported amounts of assets and liabilities resulting from the adoption of fresh-start reporting and the effects of the forgiveness of debt in the reorganization are reported within reorganization items in the consolidated statement of operations for the eleven months ended November 30, 2009.

RECLASSIFICATIONS—Certain reclassifications have been made to conform prior year balances to the current year presentation.

EQUITY-BASED COMPENSATION—We grant certain of our employees equity-based compensation awards which vest contingent on continued service of the recipient or on their achievement of specific performance targets. We record compensation expense for these outstanding awards over applicable service or performance periods based on their grant date fair value with a corresponding increase to additional paid-in capital.

COMPREHENSIVE INCOME (LOSS) AND ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS)—Comprehensive income (loss) is defined as a change in equity of a business enterprise during a period from transactions and other events and circumstances from non-owner sources and includes all changes in equity during a period except those resulting from investments by owners and distributions to owners. Our comprehensive income (loss) consists of currency translation adjustments, changes in the funded status of pension benefit plans and changes in the fair value of interest rate swaps.

During June 2011, the FASB issued ASU No. 2011-05, "Presentation of Comprehensive Income". This ASU is designed to improve the comparability, consistency and transparency of financial reporting and to increase the prominence of items reported in other comprehensive income. The amendments require that all non-owner changes in stockholders' equity be presented either in a single continuous statement of comprehensive income or in two separate but consecutive statements. This standard is complied with in these consolidated financial statements.

In December 2011, the FASB issued ASU 2011-12, "Deferral of the Effective Date for Amendments to the Presentation of Reclassifications of Items Out of Accumulated Other Comprehensive Income in Accounting Standards Update No. 2011-05," which deferred certain presentation requirements in ASU 2011-05 for items reclassified out of accumulated other comprehensive income. We plan to adopt this standard in 2012.

Year Ended December 31, 2010 (Successor)

Losses recorded during the year ended December 31, 2010 related to the disposal or impairment of long-lived assets included the following (in thousands):